The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper focuses on the design of a low-power PPG-based heart rate monitoring system based on a MOS-PN hybrid photosensor. The latter performs a direct light-to-time conversion, allowing to use a fully digital light-to-digital conversion and avoiding the need for an area- and power-consuming analog front-end. The proposed PPG sensing interface is analyzed both theoretically and experimentally. The...
A measurement method is reported to distinguish the different mechanisms that lead to image lag in image sensors based on pinned photodiodes (PPDs). This new method can differentiate between the lag caused by a potential barrier or pocket and gate traps independently of charge spill-back. This is in contrast to usual lag characterization techniques, which only provide a quantitative measurement of...
A demodulation image sensor suitable for Fluorescence Lifetime Imaging Microcopy (FLIM) was developed in a standard CMOS process with a buried photodiode (BPD) option. Contrary to existing imagers with large demodulation pixels based on BPD, the pixel featuring a pitch of 6.3um was designed for high charge transfer speed by optimizing the transfer gate shape rather than the BPD shape. Demodulation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.